Castle Hook Partners LP holds a focused book of 44 stocks worth $4.9B as of Q1 2026 (disclosed May 15, 2026, a ~45-day 13F lag). This quarter they opened Equinix Inc and trimmed Comfort Systems USA Inc. Their largest long position is Natera Inc at 10% of the equity book. They also disclosed $10.9B in put options (a bearish bet) and $7.6B in call options (bullish), shown separately below and excluded from the equity book.
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Use Arkolith to show Castle Hook Partners LP's latest holdings, largest changes, and filing provenance.
Top-heavy: focused book
Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.
100% mapped to company sectors
Direct operating-company sectors from our SIC-based security master. ETF/fund and unclassified holdings stay visible separately; this is not ETF look-through exposure.
Estimated $ traded · quarter-end prices, no cost basis
Bars show each stock's share of the portfolio. Click a row for its position history.
| # | Security | Value | Shares | % Port | Last move | History |
|---|---|---|---|---|---|---|
| 1 | Natera Inc COM | $505.9M | 2.53M | 10.2% | ▲+17% Added · +362K sh | |
| 2 | Comfort Sys USA Inc COM | $288.1M | 208.9K | 5.8% | ▼−22% Reduced · −59K sh | |
| 3 | Equinix Inc COM | $258.7M | 263.9K | 5.2% | ▲New New position | |
| 4 | RTX Corporation COM | $248.2M | 1.29M | 5.0% | ▲New New position | |
| 5 | Walmart Inc COM | $243.4M | 1.96M | 4.9% | ▼−2.3% Reduced · −45K sh | |
| 6 | Western Digital Corp COM | $237.7M | 878.9K | 4.8% | ▼−34% Reduced · −447K sh | |
| 7 | Welltower Inc COM | $235.6M | 1.19M | 4.8% | ▼−4.6% Reduced · −57K sh | |
| 8 | L3harris Technologies Ord COM | $232.7M | 674.1K | 4.7% | ▲New New position | |
| 9 | Seagate Technology HLDNGS In ORD SHS | $220.0M | 561.6K | 4.4% | ▼−30% Reduced · −241K sh | |
| 10 | Insmed Inc COM PAR $.01 | $207.6M | 1.27M | 4.2% | ▲+1.3% Added · +16K sh | |
| 11 | TTM Technologies Inc COM | $206.0M | 2.11M | 4.2% | ▲+9.4% Added · +182K sh | |
| 12 | Karman Hldgs Inc COMMON STOCK | $199.6M | 2.49M | 4.0% | ▲New New position | |
| 13 | Applied Matls Inc COM | $177.9M | 520.6K | 3.6% | ▲+115% Added · +279K sh | |
| 14 | Sandisk Corp COM | $175.9M | 276.9K | 3.6% | ▲38× Added · +270K sh | |
| 15 | Solstice Advanced Matls Inc COM SHS | $169.6M | 2.23M | 3.4% | ▲+87% Added · +1.0M sh | |
| 16 | Danaher Corp Del COM | $166.8M | 880.0K | 3.4% | ▼−24% Reduced · −272K sh | |
| 17 | Cameco Corp COM | $150.8M | 1.39M | 3.0% | ▼−34% Reduced · −701K sh | |
| 18 | Exxon Mobil Corp COM | $147.6M | 870.2K | 3.0% | ▲New New position | |
| 19 | Linde PLC SHS | $126.4M | 255.0K | 2.6% | ▲New New position | |
| 20 | Live Nation Entertainment In COM | $121.7M | 798.0K | 2.5% | ▲New New position | |
| 21 | Lumentum Hldgs Inc COM | $106.4M | 151.4K | 2.2% | ▲14× Added · +141K sh | |
| 22 | Dicks Sporting Goods Inc COM | $101.0M | 509.3K | 2.0% | ▼−13% Reduced · −79K sh | |
| 23 | Analog Devices Inc COM | $91.0M | 286.0K | 1.8% | ▲89× Added · +283K sh | |
| 24 | BP PLC SPONSORED ADR | $52.8M | 1.12M | 1.1% | ▲New New position | |
| 25 | Dexcom Ord COM | $50.4M | 801.8K | 1.0% | ▼−64% Reduced · −1.4M sh | |
| 26 | Steel Dynamics Ord COM | $48.5M | 269.6K | 1.0% | ▲New New position | |
| 27 | Viking Holdings Inc ORD SHS | $46.6M | 634.1K | 0.9% | ▲New New position | |
| 28 | Newamsterdam Pharma Company ORDINARY SHARES | $33.4M | 1.04M | 0.7% | ▼−3.9% Reduced · −42K sh | |
| 29 | Albemarle Corp COM | $26.1M | 145.2K | 0.5% | ▼−90% Reduced · −1.3M sh | |
| 30 | Compass Inc COM | $18.3M | 2.50M | 0.4% | ▲18× Added · +2.4M sh | |
| 31 | Nucor Corp COM | $14.5M | 85.7K | 0.3% | ▲New New position | |
| 32 | DBX ETF TR XTRACK HRVST CSI | $9.2M | 283.2K | 0.2% | ▲New New position | |
| 33 | Tractor Supply Co COM | $9.1M | 200.0K | 0.2% | ▼−11% Reduced · −25K sh | |
| 34 | Applovin Corp COM CL A | $6.0M | 15.0K | 0.1% | ▼−96% Reduced · −379K sh | |
| 35 | Corebridge Finl Inc COM | $4.2M | 175.6K | 0.1% | ▲New New position | |
| 36 | Amazon Com Inc COM | $2.0M | 9.8K | 0.0% | ▲New New position | |
| 37 | Wayfair Inc CL A | $1.9M | 25.6K | 0.0% | ▲New New position | |
| 38 | AstraZeneca PLC ORD | $1.8M | 9.0K | 0.0% | ▲New New position | |
| 39 | Hasbro Inc COM | $1.4M | 15.2K | 0.0% | ▲New New position | |
| 40 | Abbott Laboratories COM | $1.2M | 11.3K | 0.0% | ▲New New position | |
| 41 | McKesson Corp COM | $793K | 916 | 0.0% | ▲New New position | |
| 42 | Somnigroup International Inc COM | $677K | 9.2K | 0.0% | ▲New New position | |
| 43 | Nvidia Corporation COM | $519K | 3.0K | 0.0% | ▼−90% Reduced · −28K sh | |
| 44 | Zevia PBC CL A | $201K | 171.8K | 0.0% | ▲New New position |
Put / call positions from the 13F — totals include every disclosed option leg
| Type | Underlying | Notional value | Underlying shares |
|---|---|---|---|
| PUT · bearish | SS SPDR S&P 500 ETF TRUST-USSPY | $10.8B | 166K |
| CALL · bullish | SPDR GOLD SHARESGLD | $6.0B | 138K |
| CALL · bullish | UNITED AIRLINES HOLDINGS INCUAL | $1.2B | 126K |
| CALL · bullish | DELTA AIR LINES INCDAL | $488.0M | 73K |
| PUT · bearish | ISHARES RUSSELL 2000 ETFIWM | $81.6M | 3K |
| PUT · bearish | ISHARES MSCI SOUTH KOREA ETFEWY | $21.5M | 2K |
13F filers disclose option positions at the market value of the underlying the contracts reference, not the premium paid. A put is a bearish bet (it gains if the stock falls); a call is bullish. “Underlying shares” is the share count the contracts control, not a share holding. These legs are excluded from the equity book, weighting, concentration and sector figures above.
As-of date vs the date the SEC received each filing
| Quarter | As of | Filed | Positions | Value | Form |
|---|---|---|---|---|---|
| Q1 2026 | Mar 31, 2026 | May 15, 2026 | 50 | $23.4B | 13F-HR |
| Q4 2025 | Dec 31, 2025 | Feb 17, 2026 | 59 | $24.1B | 13F-HR |
| Q3 2025 | Sep 30, 2025 | Nov 14, 2025 | 63 | $19.7B | 13F-HR |
| Q2 2025 | Jun 30, 2025 | Aug 14, 2025 | 71 | $17.6B | 13F-HR |
| Q1 2025 | Mar 31, 2025 | May 15, 2025 | 37 | $9.7B | 13F-HR |
| Q4 2024 | Dec 31, 2024 | Feb 14, 2025 | 45 | $8.1B | 13F-HR |
| Q3 2024 | Sep 30, 2024 | Nov 14, 2024 | 39 | $5.3B | 13F-HR |
| Q2 2024 | Jun 30, 2024 | Aug 14, 2024 | 49 | $4.2B | 13F-HR |
| Q1 2024 | Mar 31, 2024 | May 13, 2024 | 56 | $3.6B | 13F-HR |
| Q4 2023 | Dec 31, 2023 | Feb 13, 2024 | 47 | $8.0B | 13F-HR |
| Q3 2023 | Sep 30, 2023 | Nov 13, 2023 | 41 | $2.8B | 13F-HR |
| Q2 2023 | Jun 30, 2023 | Aug 11, 2023 | 34 | $3.4B | 13F-HR |
| Q1 2023 | Mar 31, 2023 | May 12, 2023 | 31 | $4.4B | 13F-HR |
| Q4 2022 | Dec 31, 2022 | Feb 10, 2023 | 42 | $1.5B | 13F-HR |
| Q3 2022 | Sep 30, 2022 | Nov 14, 2022 | 46 | $629.9M | 13F-HR |
| Q2 2022 | Jun 30, 2022 | Aug 12, 2022 | 45 | $2.8B | 13F-HR |
| Q1 2022 | Mar 31, 2022 | May 13, 2022 | 58 | $2.3B | 13F-HR |
| Q4 2021 | Dec 31, 2021 | Feb 11, 2022 | 63 | $2.3B | 13F-HR |
| Q3 2021 | Sep 30, 2021 | Nov 12, 2021 | 76 | $2.7B | 13F-HR |
| Q2 2021 | Jun 30, 2021 | Aug 13, 2021 | 68 | $1.3B | 13F-HR |
| Q1 2021 | Mar 31, 2021 | May 14, 2021 | 75 | $1.1B | 13F-HR |
| Q4 2020 | Dec 31, 2020 | Feb 12, 2021 | 36 | $2.0B | 13F-HR |
| Q3 2020 | Sep 30, 2020 | Nov 13, 2020 | 46 | $2.6B | 13F-HR |
| Q2 2020 | Jun 30, 2020 | Aug 14, 2020 | 39 | $1.3B | 13F-HR |
Holdings from SEC EDGAR 13F-HR filings, updated quarterly ~45 days after quarter-end. Public domain. The book and weighting are long equity only; disclosed put/call options are listed separately and excluded from those totals. Price-derived performance is withheld until the price-source policy and freshness gate are green.